Situmorang, Santa Murni A, Srinahyanti Srinahyanti, and Isa Hidayati. “Bagaimana Anak Usia Dini Belajar Matematika? Suatu Tinjauan Literatur Konstruktivisme”. HIBRUL ULAMA 7, no. 2 (December 12, 2025): 262–270. Accessed December 18, 2025. https://ejurnal.univamedan.ac.id/index.php/hibrululama/article/view/1135.